JP3251352B2 - Nori work boat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seaweed work boat for cutting seaweed and acid-treating seaweed nets on seaweed nets spread on the sea surface in seaweed cultivation farms.

[0002]

2. Description of the Related Art In general, seaweed cultivation is carried out by attaching a float to the seaweed net and floating it on the sea surface, and then spreading the seaweed with an anchor, or by mooring the seaweed net on a pillar erected in the sea. It is carried out by a supporting column system. The proper use of both types is determined by the location conditions of the farm.

On the other hand, in such a nori cultivation, it is necessary to efficiently perform the operation of cutting the nori from the nori net and the acid treatment of the nori net, and the like.
Japanese Patent Publication No. 228015 proposes a nori net acid treatment boat and a nori cut acid treatment boat called a moat boat as a laver workboat that solves this problem. In other words, while propelling by the power propulsion mechanism, the guide member whose tip is submerged under the sea is put under the seaweed net spread on the sea surface, and the seaweed net is automatically scooped continuously from the sea surface. By using a seaweed cutting mechanism and an acid treatment mechanism provided on the hull, the work is efficiently performed and the labor is saved.

[0004]

However, as can be seen from the increasing awareness of environmental problems in recent years,
Various types of environmental pollution are spreading, and the environment of the seaweed farm near the coast is getting worse.
The sea surface of the seaweed farm is heavily contaminated, and many types of suspended matter such as garbage are being seen.

[0005] In such a state of the sea surface of the seaweed cultivation yard, when the above-mentioned conventional seaweed work boat performs work such as cutting of seaweed, the seaweed net floats on the sea surface when it is scooped from the sea surface to the hull. Floating matter such as garbage adheres to the laver propagated on the laver net, and the laver to which the floating matter adheres is cut off from the laver net.

[0006] That is, there is a problem that suspended matter is mixed in the laver cut from the laver net, and the quality of the laver is deteriorated in this state.

[0007] In order to solve this problem, conventionally, the cut seaweed is washed by washing with water or the like so as to wash away suspended matters. However, such a method has problems that a great deal of labor and time are required, and that the removal of suspended matters is not sufficient.

[0008] Also, during the acid treatment of the laver net,
The acid treatment is performed in a state where the suspended matter adheres to the seaweed, and there is a problem that the acid treatment of the seaweed is uneven and an effective acid treatment cannot be performed.

[0009] The present invention has been made in view of these points, and overcomes the above-mentioned problems in the conventional art.
Provided is a seaweed work boat capable of preventing the inconvenience that suspended matter floating on the sea surface adheres to seaweed breeding on the seaweed net when the seaweed net is continuously scooped from the sea surface to the hull. With the goal.

[0010]

In order to achieve the above-mentioned object, a laver working boat according to the present invention is provided with a laver net placed in front of a bow of a hull and extended with a suspension rope on a sea surface to immerse into the sea. A laver net immersion means to be immersed, and a guide means disposed at a downstream side of the laver net immersion means in the traveling direction of the hull and guiding at least the laver net from the sea surface to above the bow of the hull.

[0011]

According to the laver work boat of the present invention having the above-described structure, the laver net stretched on the sea surface by the laver net immersion means is temporarily immersed in the sea before being scooped from the sea surface to the hull. In addition, floating substances adhering to nori breeding on the nori net can be separated. In addition, suspended matter floating on the sea surface can be eliminated by the wake of the laver net immersion means.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIGS. 1 to 3 show an embodiment of a laver work boat according to the present invention. FIG. 1 is a side view of a main part showing the entire structure, FIG. 2 is a plan view, FIG. 3 is a front view, and FIG. 4 shows an embodiment of the suspension rope passing means.
Is an explanatory diagram viewed from the front, b is an explanatory diagram viewed from the side,
FIG. 5 is a side view showing the mowing mechanism.

The laver work boat 1 of the present embodiment shows a case where the present invention is applied to a laver harvesting boat that harvests laver from a laver net 2 used in a laver cultivation method called a strut method.
The laver net 2 is fastened to a number of pillars 3 erected from the sea floor at appropriate intervals by suspension ropes 4 and stretched so as to float on the sea surface.

As shown in FIGS. 1 to 3, the laver work boat 1 of the present embodiment has a hull 5, a laver net immersion means 6 disposed upstream of the hull 5 in the traveling direction, and a laver net immersion means 6. Guide means 7 disposed further downstream in the traveling direction of the hull 5 to scoop the laver net 2 from the surface of the sea and guide the upper part of the hull 5 from the bow to the stern, and are referred to as bridles located near the bow of the hull 5. And a cutting mechanism 9 disposed substantially at the center of the hull 5.

More specifically, an appropriate power propulsion mechanism 10 is disposed at the stern of the hull 5. The power propulsion mechanism 10 is more efficient if it is disposed because it can propulsion by itself for reciprocation to the seaweed cultivation site, but it is not necessary.

On the upper part of the deck of the hull 5, a pipe-shaped guide means 7 is provided. This guidance means 7
Front guide member 11 and upper guide member 12 called corners
Is formed from. The front guide member 11 is formed in a substantially U-shape in plan view, and the curved front end of the U-shape is immersed in the sea at a desired inclination angle from the bow, and the other end is a suitable downward supporting member. And is attached to the upper guide member 12 so as to be detachable and rotatable by appropriate engaging means such as bolts (not shown). The upper guide member 12 is formed by two pipes 14, 14 arranged above the port side of the hull 5 in parallel with the traveling direction of the hull 5, and these two pipes 14, 14 Are fixed to the hull 5 by a plurality of support members 15, 15...

The upper guide member 12 forms a curved line or a straight line continuous with the front guide member 11 so that the laver net 2 scooped up by the front guide member 11 is smoothly guided to the rear part of the hull 5. It is configured to form.

The width of the front guide member 11 and the width of the upper guide member 12 may be substantially the same as or larger than the width of the laver net 2.

The front guide member 11 is, as described above,
The one that is divided and rotatable at the engagement portion with the upper guide member 12 by a suitable engagement means such as a bolt (not shown) is used when the laver work boat 1 reciprocates to the farm, Can be pulled up from the sea, and is not affected by seawater, and is preferable in the sense of preventing damage and destruction of the front guide member 11 at the time of berthing. There is essentially no problem. In addition, the tip shape of the front guide member 11 is not limited to a U-shape, and is not particularly limited as long as it can smoothly scoop up the laver net 2 floating on the sea surface as the laver work boat 1 advances, such as a V-shape. It is not something to be done.

A laver net immersion means 6 for temporarily immersing the laver net 2 spread on the sea surface from the sea surface into the sea is disposed from the front to the upper side of the front guide member 11. The laver net immersion means 6 includes a nori net holding member 16 and a nori net holding support member 17.

The laver net holding member 16 is formed in a substantially columnar shape and is substantially the same width as the laver net 2 or larger than the width of the laver net 2. The hull 5 is disposed on the upstream side in the traveling direction of the hull 5 in a direction orthogonal to the traveling direction of the hull 5. At both ends of the laver net holding member 16, one end of a laver net holding support member 17 composed of two appropriate rods and the like arranged substantially parallel to the traveling direction of the hull 5 is attached. Further, when the nori net holding member 16 is disposed on the nori net 2, the nori net 2
Is to sink into the sea.

When the laver net holding member 16 of the laver net holding member 16 is arranged on the nori net 2, it is desirable that the upper part thereof is exposed from the sea surface. This means that floating matter such as garbage floating on the sea surface can be separated on both sides in the traveling direction of the nori net holding member 16 by the wake of the nori net holding member 16 as the hull 5 advances, and the front guide is provided. The member 11 can prevent floating substances such as dust from adhering to the laver net 2 scooped up.

Further, a scraper (not shown) having a substantially mountain shape or the like is disposed immediately above the laver net holding member 16 or on the downstream side in the traveling direction so as to separate floating matters such as dust floating on the sea surface. Good.

In the vicinity of the bow of the hull 5, a suspension rope passing means 8 is disposed. The suspension rope passing means 8 includes an upper member 18 and a lower member 19.

More specifically, as shown in FIGS. 4A and 4B, the lower member 19 is provided with the upper guide member 12.
An appropriate tank 20 having a width slightly smaller than the width of the two pipes 14 and a float member 22 floating on an appropriate liquid 21 stored in the tank 20. The tank 20 has appropriate legs 23 in the lower part, and the hull 5
It is mounted on the deck. In addition, the float member 22
Are two appropriate floats 22a, 22a and an appropriate connecting member 2 for connecting the two floats 22a, 22a.
2b, seawater stored in the tank 20;
It is suspended on an appropriate liquid 21 such as fresh water. The other end of the nori net holding support member 17 of the nori net immersion means 6 is attached to the upper part of the two floats 22a, 22a. Therefore, the laver net immersion means 6 can be stored on the hull 5 when the laver work boat 1 reciprocates to the cultivation site, without receiving seawater resistance, and the laver net immersion means 6 at the time of anchorage. Although it is preferable in terms of preventing damage and destruction, there is essentially no problem even if it is not stored on the hull 5.

The suspension rope passing means 8 may be configured so that the upper member 18 can be separated from the hull 5 and float on a lower member 19 disposed on the hull 5 by using, for example, magnetic force. In particular, the present invention is not limited to this embodiment.

At the center of the hull 5, there is provided a conventionally-known mowing mechanism 9, as shown in FIG.
This cutting mechanism 9 radially attaches an L-shaped blade 25 having a width substantially equal to the width of the front guide member 11 to a shaft 24 rotated by an electric motor or the like (not shown).
By rotating the character-shaped blade 25, the seaweed hanging from the seaweed net 2 is cut off. The mowing mechanism 9 may be used to cut seaweed with the stretched wire by rotating a wire in which a wire such as a piano wire is stretched between the outer circumferences of two other disks, and may continuously mow. If it is a mechanism, it is not limited to the above.

A storage portion (not shown) for harvesting the harvested seaweed is provided at the rear of the hull 5, and the seaweed cut by the cutting mechanism 9 is provided on a deck inclined toward the storage portion. Is stored in the storage unit while sliding.

A steering room (not shown) is provided at the rear end of the hull 5.
The height of the upper guide member 12 is lower than the height of the upper guide member 12 so as not to hinder traveling on the upper guide member 12, and the steering room includes a control unit that commands and manages the operation of the mowing mechanism 9.
It is desirable that all operations be performed in this steering room.

Next, the operation of the present embodiment having the above-described configuration will be described.

In the seaweed cutting operation, the power propulsion mechanism 10 of the seaweed work boat 1 of the present embodiment is operated, and the seaweed is propelled to one end of a desired seaweed net 2 spread on the sea surface of the seaweed farm, Thereafter, the power propulsion mechanism 10 is stopped. And
Nori net immersion means 6 stored in hull 5 as described above,
In addition, the divided or rotated front guide member 11 is arranged at a predetermined position, and the nori net holding member 16 of the nori net immersion means 6 is arranged on one end surface of a desired nori net 2 spread on the sea surface. Let it. Next, the power propulsion mechanism 10 of the hull 5 is operated again to propel itself toward the other end of the laver net 2, and the mowing mechanism 9 is operated. Then, while the laver net 2 is continuously immersed in the sea by the laver net holding member 16 of the laver net immersion means 6, the laver net 2 is continuously scooped up by the front guide member 11 whose tip is immersed in the sea. At the same time, after the laver net 2 is guided toward the stern along the upper guide member 12 with the self-propulsion of the hull 5, the stern of the hull 5 is returned to the sea surface again. At this time, the suspension ropes 4 connected to the laver net 2 pass between the upper member 18 and the lower member 19 of the suspension rope passing means 8. Further, the leaf body of the laver hanging down from the laver net 2 moving along the upper guide member 12 is continuously mowed by the mowing mechanism 9 arranged at the center of the hull 5,
The hull 5 is stored in a storage unit (not shown).

As described above, once the laver net 2 is immersed in the sea by the laver net holding member 16 of the laver net immersion means 6, dust and the like adhering to the laver net 2 and the nori breeding on the laver net 2 are obtained. Floats from the laver net 2 and the laver when the laver net 2 sinks into the sea. That is, the suspended matter can be easily separated from the laver net 2 and the laver. Further, the separated suspended matter can be removed to both sides of the laver net immersion means 6 by the wake generated by the laver net immersion means 6 of the laver net immersion means 6 as the hull 5 advances, so When the seaweed net 2 once immersed in the sea is continuously scooped from the sea surface by the tip of the front guide member 11 arranged on the downstream side in the traveling direction of the hull 5 from the member 16, the floating floating on the sea surface It is possible to reliably prevent the thing, the laver net 2 and the floating matter detached from the laver and floating on the sea surface from adhering to the laver net 2. In addition, when a scraper (not shown) having a substantially mountain-like shape in a plane is disposed immediately above the laver net holding member 16 or on the downstream side in the traveling direction, the separation effect of suspended matter can be obtained even when the seaweed is harvested when the waves are slightly high. Can be retained.

Therefore, no floating matter such as dust is mixed into the laver cut from the laver net 2, and high-quality laver can be reliably obtained.

The laver net 2 and the suspension rope 4 connected thereto pass between the hull 5 of the suspension rope passing means 8, the upper member 18 separated from the hull 5, and the lower member 19; It is not necessary to remove the rope 4 from the laver net 2, and it is preferable in terms of improving work efficiency and reducing labor. The laver net immersion means 6 may be fixed to the hull 5 without being provided.

Further, the present invention is not limited to the aquaculture method referred to as the column type in the above-described embodiment, but can be naturally applied to a floating type aquaculture method.

The present invention is not limited to the above-described embodiment, and various modifications can be made as necessary.

For example, a conventional acid treatment mechanism is arranged on the laver work boat 1 instead of the laver clipping mechanism 9 and is applied as an acid treatment vessel for a laver net, or both are arranged side by side to remove the acid. It can be applied as a processing boat. further,
A conventional appropriate washing device may be arranged on the suspension rope passing means 8 arranged on the laver work boat 1 to wash the laver net 2.

[0039]

As described above, according to the laver work boat of the present invention, the laver net is immersed in the sea by the laver net immersion means, so that it is attached to the laver net and the laver propagated in the laver net. Since floating substances such as garbage can be reliably removed, high-quality laver can be obtained.

[Brief description of the drawings]

FIG. 1 is a side view of a main part showing an entire configuration of an embodiment of a laver work boat according to the present invention.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 shows an embodiment of the suspension rope passing means, where a is an explanatory diagram viewed from the front, and b is an explanatory diagram viewed from the side.

FIG. 5 is a side view showing a cutting mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Nori work boat 2 Nori net 4 Suspension line 5 Hull 6 Nori net immersion means 7 Guide means 8 Suspension rope passing means 9 Cutting mechanism 10 Power propulsion mechanism 11 Front guide member 12 Upper guide member 16 Nori net holding member 17 Nori net holding Support member 18 Upper member 19 Lower member 20 Tank 21 Liquid 22 Float member 22a Float

Claims (1)

(57) [Claims] 1. A laver net immersion means for immersing a laver net extending in the sea at a position in front of a bow portion of a hull, and a laver net immersion means disposed downstream of the laver net immersion means in the traveling direction of the hull. A guide means for guiding at least the laver net from the sea surface to above the bow of the hull.